Update README.md

README.md

@@ -44,4 +44,37 @@ language:
 pretty_name: MariNER
 size_categories:
 - 1K<n<10K
----
+---
+
+This is the MariNER (Mapeamento e Anotações de Registros hIstóricos para NER) dataset, a Named Entity Recognition dataset for Brazilian Portuguese in the historical domain, presented in the paper [MariNER: A Dataset for Historical Brazilian Portuguese Named Entity Recognition](https://arxiv.org/abs/2506.23051). The dataset consists of five documents from early 20th Century on expeditions through Brazil's Northeast region. The documents were manually annotated with four entity types: Person, Location, Date and Organization. They were also divided into sentences and tokenized.
+
+The dataset is available in the BIO format, with the following distinct labels and corresponding indices:
+
+| Label | Tag |
+|-------|-------------|
+| 0 | O |
+| 1 | B-PESSOA |
+| 2 | I-PESSOA |
+| 3 | B-LOCAL |
+| 4 | I-LOCAL |
+| 5 | B-DATA |
+| 6 | I-DATA |
+| 7 | B-ORGANIZACAO |
+| 8 | I-ORGANIZACAO |
+
+
+
+To cite this work, use:
+
+```
+ @misc {
+      sarcinelli2025marinerdatasethistoricalbrazilian,
+      title={MariNER: A Dataset for Historical Brazilian Portuguese Named Entity Recognition}, 
+      author={João Lucas Luz Lima Sarcinelli and Marina Lages Gonçalves Teixeira and Jade Bortot de Paiva and Diego Furtado Silva},
+      year={2025},
+      eprint={2506.23051},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2506.23051}, 
+}
+```